18402495

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{277}}^1$

素因数の和:431

約数の個数: 32

約数和(自身を含む): 30531072

約数和(自身を除く): 12128577

約数列:

[1, 3, 5, 15, 43, 103, 129, 215, 277, 309, 515, 645, 831, 1385, 1545, 4155, 4429, 11911, 13287, 22145, 28531, 35733, 59555, 66435, 85593, 142655, 178665, 427965, 1226833, 3680499, 6134165, 18402495]

約数ペア:

[(1, 18402495), (3, 6134165), (5, 3680499), (15, 1226833), (43, 427965), (103, 178665), (129, 142655), (215, 85593), (277, 66435), (309, 59555), (515, 35733), (645, 28531), (831, 22145), (1385, 13287), (1545, 11911), (4155, 4429)]